Imperial College London
Alternate

DrNavtejChahal

Faculty of Medicine, National Heart & Lung Institute

Honorary Clinical Senior Lecturer
 
 
 
//

Contact

 

navtej.chahal07

 
 
//

Location

 

Royal BromptonRoyal Brompton Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Cheung:2014:10.1016/j.ultrasmedbio.2015.02.010,
author = {Cheung, W and Gujral, DM and Shah, BNA and Chahal, NSI and Bhattacharyya, S and Cosgrove, DO and Eckersley, RJ and Harrington, KJ and Senior, RR and Nutting, CM and Tang, M},
doi = {10.1016/j.ultrasmedbio.2015.02.010},
journal = {Ultrasound in Medicine and Biology},
pages = {1876--1883},
title = {Attenuation correction and normalisation for quantification of contrast enhancement in ultrasound Images of carotid arteries},
url = {http://dx.doi.org/10.1016/j.ultrasmedbio.2015.02.010},
volume = {41},
year = {2014}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - An automated attenuation correction and normalisation algorithm was developed to improve the quantification of contrast enhancement in ultrasound images of carotid arteries. The algorithm first corrects attenuation artefact and normalises intensity within the contrast agent-filled lumen and then extends the correction and normalisation to regions beyond the lumen. The algorithm was first validated on phantoms consisting of contrast agent-filled vessels embedded in tissue-mimicking materials of known attenuation. It was subsequently applied to invivo contrast-enhanced ultrasound (CEUS) images of human carotid arteries. Both invitro and invivo results indicated significant reduction in the shadowing artefact and improved homogeneity within the carotid lumens after the correction. The error in quantification of microbubble contrast enhancement caused by attenuation on phantoms was reduced from 55% to 5% on average. In conclusion, the proposed method exhibited great potential in reducing attenuation artefact and improving quantification in contrast-enhanced ultrasound of carotid arteries.
AU  - Cheung,W
AU  - Gujral,DM
AU  - Shah,BNA
AU  - Chahal,NSI
AU  - Bhattacharyya,S
AU  - Cosgrove,DO
AU  - Eckersley,RJ
AU  - Harrington,KJ
AU  - Senior,RR
AU  - Nutting,CM
AU  - Tang,M
DO  - 10.1016/j.ultrasmedbio.2015.02.010
EP  - 1883
PY  - 2014///
SN  - 0301-5629
SP  - 1876
TI  - Attenuation correction and normalisation for quantification of contrast enhancement in ultrasound Images of carotid arteries
T2  - Ultrasound in Medicine and Biology
UR  - http://dx.doi.org/10.1016/j.ultrasmedbio.2015.02.010
UR  - http://hdl.handle.net/10044/1/22076
VL  - 41
ER  -
Download